What tool shows the movement of the sun and planets

This part insulates the reaction chamber from the transfer of heat to or from the surrounding environment

The fruit of a certain plant is sweet and fleshy. the seeds of this plant have a seed coat that is fairly tough. the seeds germinate better if they are exposed to acid, or scarification. what is the most likely type of dispersal for this seed? water animal wind

Which of the following forest management practices is best for reestablishing areas of forest?